Shock-absorber.



H. C. TURNER.

SHOCK ABSORBER. APPLIOATION FILED AUG,21,1907.

1,009,454, Patented Nov. 21, 1911.

PATENT ont/fion.

HARRY c. TURNER, or Los ANGELES, oALiroRNrA.

. 'sH'oc -ABsoitBna To all whom 'it 'may concern: e

Be it known that I, HARRY C. TURNER, a citizen of the United States,=residing in the city of Los Angeles, county of'Los Angeles, State ofCalifornia, have inventedl n'ew and useful Improvements inShock-Absorbers,

' of which the follow-mg is a specification.

This invention relates to improvements on my invention for whichLetterslatent No. 819,386, dated May 1st,1906,werc granted me and alsoon my invention shown and described in my application for Letters Patentbearing 23, 1906, and allowed August 2, 1907 and the object thereof istoprovide a novel ar rangement of parts whichJenables the use the objectof my breakage of y .of an annular spring in sprmg and which .lso'ena-les the casing 1n ltion to a vehicle.

)lace of a coiled which the parts are laced to .be rendered liquid tightso that t 1e wearing'parts may be completely surrounded by a lubricantwhich enhances their wearing renders .their action uniform.

. I accomplish' this object by means, of the device described herein andillustrated in the accompanying drawings in whichz Figure 1,--is a sideelevation of'myimproved shock absorber showing its lapplicaf Fig.2,-'.is, a verticalv secf tion of the absorber, theseetion through theratchet being taken on line 2--2 of Fig. 3. Fig. 3,- is a section takenon line 3-3 of Fig. 2. Fig. i,-is a section taken on line 4-4 of Fig. 2.

Fig. -5-is a section taken on line 5- 5 of Fig. 2.` Fig. 6,-is anenlarged detail of themeans'or preventing the case from unscrewing due`to thejarring action'of the vehicle.

Referring tothe drawings 10 designates a portion of a vehicle frame and11 a portion of the frame supporting springs. Upon the passage of thevehicle o ver an obstruction or 4uneven surface, spring 11 at iirst isforced upwardly and subsequently frame .10 carrying-the body tends torise by the action of the compressedjspring. It is absorber 'to allow afree and unimpeded upward movement of the spring with the full springresiliency but to so restrict the upward movement of the,

frame that the frame and body will not be thrown violently. upward withattendant discomtiture Aof passengers and possible the spring'by aboveits normal position. To this end easing 1 1- of the abscrber is securedby' bolts 12' S. N. 297,457, filed J anuaryy qualities and to frame 10and connecting bar 13 is connected to a'pivot 14 on spring clip 15beingl adapted to oscillate lever 16 to which it is 'pivotally securedat 17. Lever 1G is formed lntegrallywith lug 18 as shown in Fig.' 2,

which projects linto sleeve 19, being rota i tively4 secured thereto byforming an mi: gral part o-plng 18. Sleeve 19 extends' beyond the end otplug. 1 8 and" encompasses a boss 21 on rear member 22' of ease 11. Abolt 23 passes longitudinally .-throughplug 18 and screws into boss 21to -the bottom 'of the bore therein as shown in Fig. 2 and holds pluglSfrom slipping out of sleeve 19, .at the same time forming a bearing forthe plug so that whenlever 16 is moved theplug will not move out ofaline-A means o' key 20- 'ioV ment and bind the different workingparts.v

Cap 24 is 4internally threaded and adapted t o screw onto rear member 22as shown in 141g. 2, a spring clip /25 mounted-on the rear member beingadapted to enter notches. 26*

in lthe rear edge of the cap and prevent the same from nnscrewing. Cap24C is provided with a central bearing V27 which surrounds sleeve `119at its outer end and is provided with stuiiing bo.\r 28 adapted to'render liquid tight the joint between sleeve 19 and lbearing 27. Fromthe above description it is manifest that sleeve 19 will be rotated whenAlever 1 6 is-oscillated by any relative movement of the vehicle bodyand springs. v The mechanism about to be described is designed, topermitl the rotation of sleeve 19 in' one irection without any`appreciable retardation but to present an adjustable reits peripherybeing carried.

s istanee to the rotation of the sleeve in the opposite direction, whichis the direction in which sleeve 19 moves when the vehicle body movesaway from the spring.

Molmted on sleeve 19 and rotativ'ely secured thereto Vby means of fourprojecting keys 30 is'a sleeve 31 which -is provided on with a series ofratchet teeth 32; Rotativelymounted on ratchet sleeve 31 are two plates33 and 34 which carry between 'themy spring pressed dogs 35 adapted.

to engage 'ratchet teeth 32 upon the upfive in number and ratchet teeth32`are sixteen innumber and thus only one dog is in engagement' 'th ltime and 'it will be4 observed that upon. the 4rotation of -'sleeve 31'through thedistance corresponding to' the length of one tooth there willb e veengagements ofthe teeth the ratchet teeth 'at one is a frictionplate 4Q whosecongu; ation is spring', the cap maybe screwed downV upondevice.. The entire 'case is filled with a lubrit tive.. lOn the rearside of'plate 33 and'ibetween lar to friction plate 40, is looselymounted beingnadapted to Apress stationary plate 43 .are freeto rotateand themovement may :take place between the friction plates andriction'plates and the revolving plates.

4friction plates in a lubricant vrenders the .lite

.claim as new `and diretosecure byv Letters by the'idogs. Thus the-lostmotion'gofth'eratchet teethl isreduced to a minimum -while the action ofthe dogs onthe same posithatplate and rear lmember'.22-of case. 11

shown in Fig. 4, the plate shownbeing' .'zhe; other friction plate ofthedevice which is constrncted similarly to plate 140. Both of theseplates are'providcd witli'finserted frictionplugs 41 0liber or corkadapted. to furnish the requisite amount of friction bctween the platesvon either side or' the fric tien plate. Asecond-riction plate 42, simionsleevel 31- adjacent vplate 34 between plate-34 and a-stationary plate43 held from rotation by means of lugs 44 on its.

periphery engaging. key ways 45 in-rear mcm'b'er 22. An annular' spring46 in the shape of .a 4frustum of a cone is interposed betweenstationary plate. 43 andA cap 24,

against -4 friction plate 42 and holdthe same in engagement `withrotating plate 34 between rotating plates 331and 34 and tric'-ltionplates 40 and 42. Thefriction plates :the stationary plates aswelLas between the From the orego-ingdescriptfcn it will-be observedthat no appreciable resistance 'will be offered to the movement of myshock absorber. in one, direction while any desired amount of resistance-mayl offered to. the movement in the opposite detection. As thefriction plates wear down, the wear being :followed up by the actions oftheannular the base member to afford the necessary compression fortheetlicientworking of the cant, preferably of semi-'liquid consistencyand is'-'prevented from running out of the case by packing box 28provided especially for that purpose. The immersion :of .the

of the plates longer than-is possible with any'other arrangement,renders the 'action of the friction plates uniform until .the arecompletely worn out,completely.lubr1 cates all bearings notintendedtoproduce friction, `and renders the action ofthe dogs noiseless: y'Having'described smy invention what I "revoluble sleeve mounted in'said case,` a

through-which said sleeve projects, means mounted on the outer end ofSaid sleevel to case connected 4to saidy sleeve by ratchet -means,'friction'plates mounted on each side of said' revoluble member, one ofsai'diriction plates bearing. against the stationary case, astationaryplate .bearing against the outer face of the'other ofs'aidfrictionplates, said 'stationary plate having a transverse movement to and fromsaid friction plate but being prevented from rotation, and an annularspring between (said stationary :plate and said cap adapted 4to bepressed. by said cap against said stationary vplate and holdsaidfriction plates and said revoluble memberl in engagement with eachother. 2. Ina shock absorber a stationary case, a screw' cap for said'jcase,` asleeverevolubly wardly through said cap, an` oscillating levermounted .on theend of said sleeve, said lever adapted lto beoperatedbythe `relative 'mounted on said'ratchet'member, said revolublemember being provided withaiplurallity of spring pressed dogs adapted toen .gage saidratchet member and adapted to rotate said revoluble membertogether with said ratchet member .in one direction and allow said.ratchet member to., rotate in the opposite direction wit-hout" rotatingsaid revoluble member, fnictionf-plates on `each side of saidrevolublemember, one of said friction platesbearing against said stationary case,a stationary plate adapted to bear against the outer face of the-otherof said friction plates, said stationary 'plate being prevented fromrotary movement but having a transverse movement to and from-saidp1ate,.and an annular spring between. said stationary plate and said capadapted to .presssaid stationary plate against 'said friction plate.

3;. In a shock absorber a stationarycase, a screw cap for said case, alsleeve.revolubly -mounted in .said -case and projecting outwardlythroughv said cap, said -cap being provided-with a packing gland aroundsaid sleeve, an oscillating lever mounted on the end of said sleeve,.said lever adapted to be o erated by the relative movements of avekeyed to said sleeve within said case a revoluble'vmember looselymounted= onsaid ratchet ,membeqlsaid 'revoluble lnemberbeing providedwith a. plurality of spring pressed dogs adapted to engage said ratchetmember and adapted to rotate saidkrevoluble mem- 1.' In a shockabsorbers stationary case, a -foile direction and allow said ratchetmem- 130 .ber together with said ratchet. member' in screw'cap adaptedto close said case and.

rotateth'e same, 4a revoluble memberin said- 5-.movements of a.vehicle.- rameandsprings, 'a ratchet memberkeyedto said sleevewithinsaid case, al revoluble4 member loosely hlcle framefand springs, aratchet member ,mounted-in said case/and projecting outlos ber to rotatein the opposite direction Without rotating said revoluble member,frietion plates on each side of said revoluble member, one of saidfriction plates bearing against said stationary ease, a stationary plateadapted to bear against the outer face of the other of said frictionplates, said sta- 'tionaryI plate being prevented from rotary movementbut having a transverse movement to and from said plate, and an annularspring between said stationary plate and said Cap adapted to press saidstationary plate against said friction plate. V,

4. ln a shock absorber a case, a revoluble shaft mounted within saidcase and project- 15 for said case, and an annular vspring between 20said cap and one of said friction plates.

In Witness that I claim `the foregoing I have hereunto subscribed myname this 13th day of August, 1907.

HARRY @.TURNER lVitnesses EDMUND A. STRAUSE, OLLIE PALMER.

